Project Experience

HEC’s multidisciplinary experience includes projects within several environmental service sectors. Ms. Elizabeth Hughes, President of HEC, has served as the environmental project manager on the following projects and for the listed clients:

Key Projects

  • CCJPA Program-Level EA for service from Reno, NV to San Jose, CA
  • City of Napa First Street Bridge over Napa River EIR/EA
  • Town of Truckee Glenshire Drive Bridge Replacement Project over Truckee River CEQA/NEPA documents
  • Kern River Natural Gas Pipeline Project from California to Wyoming, Construction Monitoring Management and Agency Coordination
  • State of California CAL-EPA Building EIR in Sacramento, CA
  • Water Pollution Control Plant Expansion Projects (Cities of Davis, Vacaville, Colfax, and Lodi) involving the California State Revolving Fund and preparation of CEQA documents

Current Clients

  • City of San Mateo
  • HDR
  • ICF (Jones & Stokes)
  • Mark Thomas & Company
  • Menzies & McCrossan LLC
  • Solano Transportation Authority

Previous Clients

State and regional government agencies

  • Sacramento Municipal Utility District (SMUD)
  • Sacramento Regional Transit District
  • State of California Department of General Services
  • Transportation Agency of Monterey County (TAMC)

Cities and counties

  • City of Colfax
  • City of Dixon
  • City of Davis
  • City of Lodi
  • City of Sacramento
  • City of Stockton
  • City of Sunnyvale
  • City of West Sacramento
  • City of Vacaville
  • Town of Truckee
  • Amador County
  • Calaveras County
  • Glenn County
  • Lassen County
  • Placer County
  • Plumas County
  • City and County of San Francisco
  • Solano County
  • Yolo County

Engineering and environmental

  • Dokken
  • HDR
  • Imbsen
  • Mark Thomas & Company
  • Martin Rivett Olson
  • MGE Engineering
  • Nelson Nygaard
  • Nolte
  • Psomas
  • Quincy Engineering
  • TIG
  • TYLin
  • URS
  • West Yost & Associates